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[Qemu-devel] [6666] SH: Implement MOVCO.L and MOVLI.L
From: |
Aurelien Jarno |
Subject: |
[Qemu-devel] [6666] SH: Implement MOVCO.L and MOVLI.L |
Date: |
Mon, 02 Mar 2009 17:13:21 +0000 |
Revision: 6666
http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=6666
Author: aurel32
Date: 2009-03-02 17:13:21 +0000 (Mon, 02 Mar 2009)
Log Message:
-----------
SH: Implement MOVCO.L and MOVLI.L
* target-sh4/cpu.h (struct CPUSH4State): New field ldst.
* target-sh4/translate.c (cpu_ldst): New.
(sh4_translate_init): Initialize cpu_ldst.
(_decode_opc): Support MOVCO.L and MOVLI.L.
(Vladimir Prus)
Modified Paths:
--------------
trunk/target-sh4/cpu.h
trunk/target-sh4/translate.c
Modified: trunk/target-sh4/cpu.h
===================================================================
--- trunk/target-sh4/cpu.h 2009-03-02 17:10:47 UTC (rev 6665)
+++ trunk/target-sh4/cpu.h 2009-03-02 17:13:21 UTC (rev 6666)
@@ -140,6 +140,8 @@
uint32_t prr; /* Processor Revision Register */
uint32_t cvr; /* Cache Version Register */
+ uint32_t ldst;
+
CPU_COMMON tlb_t utlb[UTLB_SIZE]; /* unified translation table */
tlb_t itlb[ITLB_SIZE]; /* instruction translation table */
void *intc_handle;
Modified: trunk/target-sh4/translate.c
===================================================================
--- trunk/target-sh4/translate.c 2009-03-02 17:10:47 UTC (rev 6665)
+++ trunk/target-sh4/translate.c 2009-03-02 17:13:21 UTC (rev 6666)
@@ -72,7 +72,7 @@
static TCGv cpu_gregs[24];
static TCGv cpu_pc, cpu_sr, cpu_ssr, cpu_spc, cpu_gbr;
static TCGv cpu_vbr, cpu_sgr, cpu_dbr, cpu_mach, cpu_macl;
-static TCGv cpu_pr, cpu_fpscr, cpu_fpul;
+static TCGv cpu_pr, cpu_fpscr, cpu_fpul, cpu_ldst;
static TCGv cpu_fregs[32];
/* internal register indexes */
@@ -144,6 +144,8 @@
cpu_delayed_pc = tcg_global_mem_new_i32(TCG_AREG0,
offsetof(CPUState, delayed_pc),
"_delayed_pc_");
+ cpu_ldst = tcg_global_mem_new_i32(TCG_AREG0,
+ offsetof(CPUState, ldst), "_ldst_");
for (i = 0; i < 32; i++)
cpu_fregs[i] = tcg_global_mem_new_i32(TCG_AREG0,
@@ -1559,6 +1561,37 @@
case 0x0029: /* movt Rn */
tcg_gen_andi_i32(REG(B11_8), cpu_sr, SR_T);
return;
+ case 0x0073:
+ /* MOVCO.L
+ LDST -> T
+ If (T == 1) R0 -> (Rn)
+ 0 -> LDST
+ */
+ if (ctx->features & SH_FEATURE_SH4A) {
+ int label = gen_new_label();
+ gen_clr_t();
+ tcg_gen_or_i32(cpu_sr, cpu_sr, cpu_ldst);
+ tcg_gen_brcondi_i32(TCG_COND_EQ, cpu_ldst, 0, label);
+ tcg_gen_qemu_st32(REG(0), REG(B11_8), ctx->memidx);
+ gen_set_label(label);
+ tcg_gen_movi_i32(cpu_ldst, 0);
+ return;
+ } else
+ break;
+ case 0x0063:
+ /* MOVLI.L @Rm,R0
+ 1 -> LDST
+ (Rm) -> R0
+ When interrupt/exception
+ occurred 0 -> LDST
+ */
+ if (ctx->features & SH_FEATURE_SH4A) {
+ tcg_gen_movi_i32(cpu_ldst, 0);
+ tcg_gen_qemu_ld32s(REG(0), REG(B11_8), ctx->memidx);
+ tcg_gen_movi_i32(cpu_ldst, 1);
+ return;
+ } else
+ break;
case 0x0093: /* ocbi @Rn */
{
TCGv dummy = tcg_temp_new();
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